Picture it after a slip to the outside, striking from inside outward, similar to a backfist. It takes some practice, but it really digs the ribs. I wouldnt necessarily try it against Anderson Silva and certainl not from a square and fontward position. Its only something that works if you are able o slip the opponents strike, which likely means you are faster than he is.
"When I let Go of who I am, I become who I might be."